09 - 2010 models with power folding mirrors?

Looking at picking up my first truck and looking at a 09 or 2010 crew cab model. My problem however is my small 8 ft garage doors so it looks like I need the power folding mirror option. Can anyone let me know know which model of Silverado Crewcabs 4x4 I should be looking at for this model? I'd also be interested in the Sierra if it helps out with the mirror problem.

Truck will mostly be driven in town with highway miles every so often. Not much towing at all.

I have a 09 crew cab 4x4 Z71 LT with folding mirrors as one of the options. This is most likely an option found on several Chevy and GMC models. Just look at the window stickers or ask the sale man to point you at a truck with that option.

I have a 09 lt z71 that came with folding mirrors. It was part of an exterior something package I think it also included the rear gate assist and something else. When they told me it had it I wasnt really impressed but have become fond of the folding after using it a few times. I would like to upgrade to the puddle lamps down the road for no good reason just because its there.
JTS